Process inactive msgs if Mms app is relaunched

Try to process all pending transations and queued smses
which maybe killed by user, OOM or Mms crashing and so on
after Mms app is (re)launched.

Since for Mms: Mms app only will retry failed transaction(
must be marked as failed) due to network issue or any known
reason, and for sms: Mms app only rely on SmsDispatcher to
retry to send at most 3 times.

Change-Id: Ifc46d1a86bf33342590313c29d6d4c0aff7c739f
Signed-off-by: Roger Chen <cxr514033970@gmail.com>
Small visibility fix

Change-Id: I433f42596c543121a3f4e038258a8d08e8c1e99f